Notes about expected battery life

Battery life is a work in progress. The power saving software is in a very rudimentary state. At the moment 12h is about the most (note though a recent result of at least 21h, mostly in suspend, with multiple short wakeups, on the predecessor device GTA01). A week standby and 6 hours talk, 20 hours mp3 might be attainable when power saving software is complete.

Make sure that the battery never discharges completely. This is an issue because
the internal charging circuitry can not be turned on until the FreeRunner has
booted, and booting through USB power alone does not work.
(If you have the newest kernel images, you should be safe due to a software fix.)

Actually this isn't true for all FreeRunner devices, I got flawless boot on GTA02 DateCode 20080626, when holding AUX while insering USB-plug of Wallwart powersupply.Also I don't see how new kernel image could help on this issue, other than if it stopped DIScharging of battery in time

Compatible Replacement Batteries

Other known FreeRunner-compatible batteries include the BL-series (BL-4X, BL-5X) from Nokia, and their third-party equivalents.
These may not work to revive a device and may not report charge information.
It is probably a good idea to check that your battery is not greater than the stock battery's voltage of 3.7V (the above suggests that 4.5VDC should be fine) unless you know what you are doing.

Battery Model

Capacity (mAh)

Charge info reported

Notes

NOKIA BL-4

no

NOKIA BL-4C

750

NOKIA BL-5B

760/890

NOKIA BL-5C

950

no

NOKIA BL-6C

1200

no

USB charger

For information about USB battery chargers that can be used with the Neo FreeRunner see

Notes about expected battery life

Battery life is a work in progress. The power saving software is in a very rudimentary state. At the moment 12h is about the most (note though a recent result of at least 21h, mostly in suspend, with multiple short wakeups, on the predecessor device GTA01). A week standby and 6 hours talk, 20 hours mp3 might be attainable when power saving software is complete.

Make sure that the battery never discharges completely. This is an issue because
the internal charging circuitry can not be turned on until the FreeRunner has
booted, and booting through USB power alone does not work.
(If you have the newest kernel images, you should be safe due to a software fix.)

Actually this isn't true for all FreeRunner devices, I got flawless boot on GTA02 DateCode 20080626, when holding AUX while insering USB-plug of Wallwart powersupply.Also I don't see how new kernel image could help on this issue, other than if it stopped DIScharging of battery in time

Compatible Replacement Batteries

Other known FreeRunner-compatible batteries include the BL-series (BL-4X, BL-5X) from Nokia, and their third-party equivalents.
These may not work to revive a device and may not report charge information.
It is probably a good idea to check that your battery is not greater than the stock battery's voltage of 3.7V (the above suggests that 4.5VDC should be fine) unless you know what you are doing.

Battery Model

Capacity (mAh)

Charge info reported

Notes

NOKIA BL-4

no

NOKIA BL-4C

750

NOKIA BL-5B

760/890

NOKIA BL-5C

950

no

NOKIA BL-6C

1200

no

USB charger

For information about USB battery chargers that can be used with the Neo FreeRunner see